#1B9AC5#1B9AC5

#1B9AC5 is a light, moderate cyan. Relative luminance 0.274; OKLCH L 64.2% C 0.119 H 227.7°. Best body text is #000000 at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#1B9AC5
RGB	rgb(27, 154, 197)
HSL	hsl(195, 76%, 44%)
HSV	hsv(195, 86%, 77%)
CMYK	cmyk(86.3%, 21.8%, 0%, 22.7%)
CIE-LAB	lab(59.32, -17.27, -31.27)
CIE-LCH	lch(59.32, 35.72, 241.08°)
OKLab	oklab(64.19% -0.0801 -0.088)
OKLCH	oklch(64.19% 0.119 227.7)
XYZ	xyz(22.0814, 27.3726, 56.9321)
Luminance	0.2737 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9AC5 #C5461B

analogous

#1BC59B #1B9AC5 #1B45C5

triadic

#1B9AC5 #C51B9A #9AC51B

tetradic

#1B9AC5 #9B1BC5 #C5461B #45C51B

square

#1B9AC5 #9B1BC5 #C5461B #45C51B

split-complementary

#1B9AC5 #C51B45 #C59B1B

monochromatic

#0C4659 #14708F #1B9AC5 #39B9E4 #6FCCEB

Accessibility & contrast

On white

3.24

#1B9AC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.48

#1B9AC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9AC5

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9AC5	#FFFFFF	#000000	##000000
##1B9AC5	1.00	3.24	6.48	6.48
#FFFFFF	3.24	1.00	21.00	21.00
#000000	6.48	21.00	1.00	1.00
##000000	6.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8397C7

Deuteranopia (green-blind)

#6E88C4

Tritanopia (blue-blind)

#00A6A8

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #1b9ac5;
/* rgb */ color: rgb(27, 154, 197);
/* oklch */ color: oklch(64.2% 0.119 227.7);

Tailwind

colors: {
  custom: {
    50: '#78b7d6',
    500: '#1b9ac5',
    950: '#000000',
  },
}

SCSS

$custom: #1b9ac5;
$custom-light: #78b7d6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9ac5",
  "rgb": {
    "r": 27,
    "g": 154,
    "b": 197
  },
  "hsl": {
    "h": 195.176,
    "s": 75.893,
    "l": 43.922
  },
  "oklch": {
    "l": 0.64188,
    "c": 0.11904,
    "h": 227.7
  },
  "luminance": 0.27375
}

Semantic roles & 50–950 ramp

primary

#1B9AC5

secondary

#D1846A

accent

#6535F2

background

#F8FBFD

surface

#EFF6FA

border

#CAD0D3

text

#0B1114

muted

#7C8083

Preview Lab

Preview with #1B9AC5

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →